function addAbstractInstantiateResultMethod()
 {
     //$docBlock = $this->generateExecuteDocBlock('Determine whether the cached response should be used.', 'boolean');
     $parameters = [];
     $parameters[] = new ParameterGenerator('response', 'Amp\\Artax\\Response');
     $parameters[] = new ParameterGenerator('operation', 'ArtaxServiceBuilder\\Operation');
     $methodGenerator = new MethodGenerator('instantiateResult');
     $methodGenerator->setParameters($parameters);
     //$methodGenerator->setDocBlock($docBlock);
     $methodGenerator->setAbstract(true);
     $this->classGenerator->addMethodFromGenerator($methodGenerator);
 }